Minor docs fixes

Merge branch 'jose/matsolve-virtualtranspose' into 'main'

Mat: add support for MatSolve operations in MATTRANSPOSEVIRTUAL

See merge request petsc/petsc!7620

This requires some changes to user FORTRAN code

Pass PETSC_NULL_XXX_ARRAY when passing a NULL as an argument that is expecting an array
Pass PETSC_NULL_ENUM when argument returns an enum instead of

This requires some changes to user FORTRAN code

Pass PETSC_NULL_XXX_ARRAY when passing a NULL as an argument that is expecting an array
Pass PETSC_NULL_ENUM when argument returns an enum instead of PETSC_NULL_INTEGER
Pass arrays (and not scalar values) when the argument is expecting an array; this means replace, for example, the argument v with [v]
Use PetscObjectIsNull(obj) to check if the object is NULL, instead of obj == PETSC_NULL_XXX

The compiler will now automatically prevent you from using the wrong argument type for the first three bullets above
This will also require an update sowing with the new sowing branch this MR is using.

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All constructors should do PetscAssertPointer on output object

Reported-by: Blaise Bourdin

Constructors should not initialize the output to NULL upon entry, serves no purpose

Fix some formatting i

All constructors should do PetscAssertPointer on output object

Reported-by: Blaise Bourdin

Constructors should not initialize the output to NULL upon entry, serves no purpose

Fix some formatting in constructors

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MatOperation enum: add new operation MATOP_GET_FACTOR

IS: set IS_SORTED to PETSC_TRUE when possible

Merge remote-tracking branch 'origin/release'

Merge branch 'release'

Trivial fixes to a couple manual pages

Update sowing bfort for automatic generation of XXXDestroy() code

Fix some Fortran stub code to work with generation of XXXDestroy()

Add some runtime tests for XXXCreate() calls

Also update sowing

Update sowing bfort for automatic generation of XXXDestroy() code

Fix some Fortran stub code to work with generation of XXXDestroy()

Add some runtime tests for XXXCreate() calls

Also update sowing and fortranimpl.h to use PETSC_NULLPTR instead of NULL

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Add missing Fortran stub for MatSetVecType()

Update matrix.c

Merge remote-tracking branch 'origin/release'

Docs: fix double backticks in seealso

Update to sowing version that supports PetscViewer and PetscObject

Remove manual Fortran stubs for PetscViewer and PetscObject arguments since now handled by sowing

Also handles the passing of null

Update to sowing version that supports PetscViewer and PetscObject

Remove manual Fortran stubs for PetscViewer and PetscObject arguments since now handled by sowing

Also handles the passing of null objects correctly

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Merge remote-tracking branch 'origin/release'

Add more details on Vec/MatGetOwnershipRange() and how the values are determined.

Reported-by: Sayan Bhattacharjee

Update source code removing all unneeded /*@C and associated manual stubs and interfaces

Merge remote-tracking branch 'origin/release'

release docs fixes

Commit-type: i.e. error-checking, optimization, bug-fix, portability-fix, testing-fix, style-fix, feature, documentation, example
Funded-by:
Project:
Time: hours
Reported-by:

release docs fixes

Commit-type: i.e. error-checking, optimization, bug-fix, portability-fix, testing-fix, style-fix, feature, documentation, example
Funded-by:
Project:
Time: hours
Reported-by:
Thanks-to:
Development Tools: Vim, Emacs, Eclipse

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Add [Vec,Mat]GetState to public API

MatSolverTypeRegister: switch to PETSC_INTERN

Mat: fix a typo in MatSetValuesBlocked

Reported by: Eric Chamberland @eric.chamberland

close #1567

Update file matrix.c

petsc4py: expose MatSetVariableBlockSizes